Seat and backrest for stool



FIG. 1 is a top and side perspective view of seat and backrest for stool showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof, the right side being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines are shown for the purpose of illustrating unclaimed portions of the seat and form no part of the claimed design. 

CLAIM The ornamental design for seat and backrest for stool, as shown and described. 